InChI=1/C20H19NO6S/c1-13-6-7-16(26-13)11-21(15-8-9-28(24,25)12-15)19(22)17-10-14-4-2-3-5-18(14)27-20(17)23/h2-7,10,15H,8-9,11-12H2,1H3/t15-/m0/s1 6833299F5427B8D7